Neural Control and Coordination
Class 11 Biology · Biology · Chapter 18
CBSE Class 11 community
View all
Physics, Chemistry, Maths + English
7~140days leftAnnual exams · school dates varyFeb–Mar 2027 · school-specific · tentative
Every subject, one purchase- Mathematics
- Physics
- + 3 more
Physics, Chemistry, Biology + English
~140days leftAnnual exams · school dates varyFeb–Mar 2027 · school-specific · tentative
Every subject, one purchase- Physics
- Chemistry
- + 3 more
Accountancy, Business Studies, Economics + English
7~140days leftAnnual exams · school dates varyFeb–Mar 2027 · school-specific · tentative
Every subject, one purchase- Accountancy
- Business Studies
- + 3 more
Biology
~140days leftAnnual exams · school dates varyFeb–Mar 2027 · school-specific · tentative
Revise all of it in about an hour- Space weighted by unit marks
- Charts from the book's own data
- Traps corrected
Accountancy
~140days leftAnnual exams · school dates varyFeb–Mar 2027 · school-specific · tentative
All 2 books, one purchase- Accountancy
Hindi Elective
2~140days leftAnnual exams · school dates varyFeb–Mar 2027 · school-specific · tentative
All 2 books, one purchase- हिंदी
Hindi Core
2~140days leftAnnual exams · school dates varyFeb–Mar 2027 · school-specific · tentative
All 2 books, one purchase- हिंदी
Chemistry
2~140days leftAnnual exams · school dates varyFeb–Mar 2027 · school-specific · tentative
All 2 books, one purchase- Chemistry
Political Science
2~140days leftAnnual exams · school dates varyFeb–Mar 2027 · school-specific · tentative
All 2 books, one purchase- Political Science
Urdu Elective
2~140days leftAnnual exams · school dates varyFeb–Mar 2027 · school-specific · tentative
All 2 books, one purchase- اردو
- Urdu Elective
Hindustani Music (Vocal / Melodic)
2~140days leftAnnual exams · school dates varyFeb–Mar 2027 · school-specific · tentative
All 2 books, one purchase- हिंदुस्तानी संगीत
Home Science
2~140days leftAnnual exams · school dates varyFeb–Mar 2027 · school-specific · tentative
All 2 books, one purchase- Home Science
English Core
2~140days leftAnnual exams · school dates varyFeb–Mar 2027 · school-specific · tentative
All 2 books, one purchase- Hornbill
- Snapshots
Geography
3~140days leftAnnual exams · school dates varyFeb–Mar 2027 · school-specific · tentative
All 3 books, one purchase- Geography
Sociology
2~140days leftAnnual exams · school dates varyFeb–Mar 2027 · school-specific · tentative
All 2 books, one purchase- Sociology
Economics
2~140days leftAnnual exams · school dates varyFeb–Mar 2027 · school-specific · tentative
All 2 books, one purchase- Economics
Physics
~140days leftAnnual exams · school dates varyFeb–Mar 2027 · school-specific · tentative
All 2 books, one purchase- Physics
Mathematics
~140days leftAnnual exams · school dates varyFeb–Mar 2027 · school-specific · tentative
TrendingRevise all of it in about an hour- Space weighted by unit marks
- Charts from the book's own data
- Traps corrected
Physics
~140days leftAnnual exams · school dates varyFeb–Mar 2027 · school-specific · tentative
Revise all of it in about an hour- Space weighted by unit marks
- Charts from the book's own data
- Traps corrected
Physics
~140days leftAnnual exams · school dates varyFeb–Mar 2027 · school-specific · tentative
Revise all of it in about an hour- Space weighted by unit marks
- Charts from the book's own data
- Traps corrected
Chemistry
~140days leftAnnual exams · school dates varyFeb–Mar 2027 · school-specific · tentative
Revise all of it in about an hour- Space weighted by unit marks
- Charts from the book's own data
- Traps corrected
Chemistry
~140days leftAnnual exams · school dates varyFeb–Mar 2027 · school-specific · tentative
Revise all of it in about an hour- Space weighted by unit marks
- Charts from the book's own data
- Traps corrected
Accountancy
~140days leftAnnual exams · school dates varyFeb–Mar 2027 · school-specific · tentative
TrendingRevise all of it in about an hour- Space weighted by unit marks
- Charts from the book's own data
- Traps corrected
Accountancy
~140days leftAnnual exams · school dates varyFeb–Mar 2027 · school-specific · tentative
Revise all of it in about an hour- Space weighted by unit marks
- Charts from the book's own data
- Traps corrected
Business Studies
~140days leftAnnual exams · school dates varyFeb–Mar 2027 · school-specific · tentative
Revise all of it in about an hour- Space weighted by unit marks
- Charts from the book's own data
- Traps corrected
Economics
~140days leftAnnual exams · school dates varyFeb–Mar 2027 · school-specific · tentative
Revise all of it in about an hour- Space weighted by unit marks
- Charts from the book's own data
- Traps corrected
Economics
~140days leftAnnual exams · school dates varyFeb–Mar 2027 · school-specific · tentative
Revise all of it in about an hour- Space weighted by unit marks
- Charts from the book's own data
- Traps corrected
History
~140days leftAnnual exams · school dates varyFeb–Mar 2027 · school-specific · tentative
Revise all of it in about an hour- Space weighted by unit marks
- Charts from the book's own data
- Traps corrected
Geography
~140days leftAnnual exams · school dates varyFeb–Mar 2027 · school-specific · tentative
Revise all of it in about an hour- Space weighted by unit marks
- Charts from the book's own data
- Traps corrected
Geography
~140days leftAnnual exams · school dates varyFeb–Mar 2027 · school-specific · tentative
Revise all of it in about an hour- Space weighted by unit marks
- Charts from the book's own data
- Traps corrected
Geography
~140days leftAnnual exams · school dates varyFeb–Mar 2027 · school-specific · tentative
Revise all of it in about an hour- Space weighted by unit marks
- Charts from the book's own data
- Traps corrected
Political Science
~140days leftAnnual exams · school dates varyFeb–Mar 2027 · school-specific · tentative
Revise all of it in about an hour- Space weighted by unit marks
- Charts from the book's own data
- Traps corrected
Political Science
~140days leftAnnual exams · school dates varyFeb–Mar 2027 · school-specific · tentative
Revise all of it in about an hour- Space weighted by unit marks
- Charts from the book's own data
- Traps corrected
Sociology
~140days leftAnnual exams · school dates varyFeb–Mar 2027 · school-specific · tentative
Revise all of it in about an hour- Space weighted by unit marks
- Charts from the book's own data
- Traps corrected
Sociology
~140days leftAnnual exams · school dates varyFeb–Mar 2027 · school-specific · tentative
Revise all of it in about an hour- Space weighted by unit marks
- Charts from the book's own data
- Traps corrected
Psychology
~140days leftAnnual exams · school dates varyFeb–Mar 2027 · school-specific · tentative
Revise all of it in about an hour- Space weighted by unit marks
- Charts from the book's own data
- Traps corrected
English Core · Hornbill
~140days leftAnnual exams · school dates varyFeb–Mar 2027 · school-specific · tentative
Revise all of it in about an hour- Space weighted by unit marks
- Charts from the book's own data
- Traps corrected
English Core · Snapshots
~140days leftAnnual exams · school dates varyFeb–Mar 2027 · school-specific · tentative
Revise all of it in about an hour- Space weighted by unit marks
- Charts from the book's own data
- Traps corrected
English Elective · Woven Words
~140days leftAnnual exams · school dates varyFeb–Mar 2027 · school-specific · tentative
Revise all of it in about an hour- Space weighted by unit marks
- Charts from the book's own data
- Traps corrected
हिंदी (आधार)
~140days leftAnnual exams · school dates varyFeb–Mar 2027 · school-specific · tentative
Revise all of it in about an hour- Space weighted by unit marks
- Charts from the book's own data
- Traps corrected
हिंदी (आधार)
~140days leftAnnual exams · school dates varyFeb–Mar 2027 · school-specific · tentative
Revise all of it in about an hour- Space weighted by unit marks
- Charts from the book's own data
- Traps corrected
हिंदी (ऐच्छिक)
~140days leftAnnual exams · school dates varyFeb–Mar 2027 · school-specific · tentative
Revise all of it in about an hour- Space weighted by unit marks
- Charts from the book's own data
- Traps corrected
हिंदी (ऐच्छिक)
~140days leftAnnual exams · school dates varyFeb–Mar 2027 · school-specific · tentative
Revise all of it in about an hour- Space weighted by unit marks
- Charts from the book's own data
- Traps corrected
संस्कृतम् (केन्द्रिकम्)
~140days leftAnnual exams · school dates varyFeb–Mar 2027 · school-specific · tentative
Revise all of it in about an hour- Space weighted by unit marks
- Charts from the book's own data
- Traps corrected
संस्कृत (ऐच्छिक)
~140days leftAnnual exams · school dates varyFeb–Mar 2027 · school-specific · tentative
Revise all of it in about an hour- Space weighted by unit marks
- Charts from the book's own data
- Traps corrected
اردو (کور)
~140days leftAnnual exams · school dates varyFeb–Mar 2027 · school-specific · tentative
Revise all of it in about an hour- Space weighted by unit marks
- Charts from the book's own data
- Traps corrected
اردو (اختیاری)
~140days leftAnnual exams · school dates varyFeb–Mar 2027 · school-specific · tentative
Revise all of it in about an hour- Space weighted by unit marks
- Charts from the book's own data
- Traps corrected
Urdu Elective
~140days leftAnnual exams · school dates varyFeb–Mar 2027 · school-specific · tentative
Revise all of it in about an hour- Space weighted by unit marks
- Charts from the book's own data
- Traps corrected
Computer Science
~140days leftAnnual exams · school dates varyFeb–Mar 2027 · school-specific · tentative
Revise all of it in about an hour- Space weighted by unit marks
- Charts from the book's own data
- Traps corrected
Informatics Practices
~140days leftAnnual exams · school dates varyFeb–Mar 2027 · school-specific · tentative
TrendingRevise all of it in about an hour- Space weighted by unit marks
- Charts from the book's own data
- Traps corrected
Home Science
~140days leftAnnual exams · school dates varyFeb–Mar 2027 · school-specific · tentative
Revise all of it in about an hour- Space weighted by unit marks
- Charts from the book's own data
- Traps corrected
Home Science
~140days leftAnnual exams · school dates varyFeb–Mar 2027 · school-specific · tentative
Revise all of it in about an hour- Space weighted by unit marks
- Charts from the book's own data
- Traps corrected
Fine Art · Painting
~140days leftAnnual exams · school dates varyFeb–Mar 2027 · school-specific · tentative
Revise all of it in about an hour- Space weighted by unit marks
- Charts from the book's own data
- Traps corrected
Biotechnology
~140days leftAnnual exams · school dates varyFeb–Mar 2027 · school-specific · tentative
Revise all of it in about an hour- Space weighted by unit marks
- Charts from the book's own data
- Traps corrected
Knowledge Traditions
~140days leftAnnual exams · school dates varyFeb–Mar 2027 · school-specific · tentative
Revise all of it in about an hour- Space weighted by unit marks
- Charts from the book's own data
- Traps corrected
सृजनात्मक लेखन और अनुवाद
~140days leftAnnual exams · school dates varyFeb–Mar 2027 · school-specific · tentative
Revise all of it in about an hour- Space weighted by unit marks
- Charts from the book's own data
- Traps corrected
Health and Physical Education
~140days leftAnnual exams · school dates varyFeb–Mar 2027 · school-specific · tentative
Revise all of it in about an hour- Space weighted by unit marks
- Charts from the book's own data
- Traps corrected
हिंदुस्तानी संगीत (गायन / वादन)
~140days leftAnnual exams · school dates varyFeb–Mar 2027 · school-specific · tentative
Revise all of it in about an hour- Space weighted by unit marks
- Charts from the book's own data
- Traps corrected
हिंदुस्तानी संगीत (गायन / वादन)
~140days leftAnnual exams · school dates varyFeb–Mar 2027 · school-specific · tentative
Revise all of it in about an hour- Space weighted by unit marks
- Charts from the book's own data
- Traps corrected
हिंदुस्तानी संगीत (तबला / पखावज)
~140days leftAnnual exams · school dates varyFeb–Mar 2027 · school-specific · tentative
Revise all of it in about an hour- Space weighted by unit marks
- Charts from the book's own data
- Traps corrected
Summary
This chapter explains how the neural system coordinates and integrates the activities of the body. Coordination is the process by which organs work together, achieved jointly by the neural system, which gives rapid point-to-point control, and the endocrine system, which gives chemical integration through hormones. The human neural system is divided into the central neural system (brain and spinal cord) and the peripheral neural system, whose afferent fibres carry impulses to the central system and efferent fibres carry them away; the peripheral system includes the somatic and autonomic (sympathetic and parasympathetic) divisions. The neuron, the structural and functional unit, has a cell body, dendrites and an axon, which may be myelinated or non-myelinated. Neurons are excitable because their membranes are polarised, maintained by the sodium-potassium pump giving a resting potential; a stimulus causes sodium influx and depolarisation, generating an action potential or nerve impulse that travels along the axon. Impulses pass between neurons at synapses, mostly chemical synapses using neurotransmitters released across the synaptic cleft. The brain, protected by the skull and meninges, has three parts: the forebrain (cerebrum, thalamus, hypothalamus and limbic system), the midbrain, and the hindbrain (pons, cerebellum and medulla oblongata), each controlling specific functions of the body.
Neural system and its divisionsNeuron as the structural and functional unitGeneration and conduction of nerve impulseTransmission of impulses across synapsesCentral neural system and the brainForebrain, midbrain and hindbrain functions
Key terms
Neuron
The structural and functional unit of the neural system, composed of a cell body, dendrites and an axon.
Resting potential
The electrical potential difference across the polarised membrane of a resting neuron.
Action potential
The reversal of membrane polarity at a stimulated site, constituting the nerve impulse.
Synapse
The junction between two neurons across which an impulse is transmitted, usually by neurotransmitters.
Neurotransmitter
A chemical such as acetylcholine released at a chemical synapse to transmit an impulse to the next neuron.
Cerebrum
The major part of the forebrain, divided into two hemispheres connected by the corpus callosum.
Extra questions & answers
Try one from this chapter
The structural and functional unit of the neural system is the: